﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace C语言
{
    class Program
    {
        static void Main(string[] args)
        {
            int y = 10;
            Console.WriteLine( ++y*3);   // 33

            int a = 12;
            Console.WriteLine(a+=a-=a*a);

        }
    }
}
